Emergency brake



J. LORENZE EMERGENCY BRAKE .Fileci Nov 5. 1926 2 ets-Sheet l INVENTOR ATTO R N EY Patented Nov. 22, 1927.

N TE ATES PATENT OFFICE}...

1 JOSEPH .LonENz EQor MonGAN TowN, WEST VIRGINIA.

nmnncnnoi BRAKE.

Application filed November 3, 1926. Serial no. Macao.

prehends'operating means for the braking means to permit the latter to free the meeting ends of rails andto give an appreciable extent while making a turnto relieve binding action. r l I More specifically stated the operating means is swingingly mounted to relieve jerking of the vehicle when the device is called into use.

lVith the above and otherobjects in View, the invention further consists of the following novel features and details of construction, to be hereinafter more fully described, illustrated in the accompanying drawings, and pointed out in the appended cl aims.

In the drawings: I

Figure 1 is a fragmentary side elevation of a locomotive with the present invention applied and used in conjunction therewith.

Figure 2is 'anelevation of the invention per .se,: partly -in.--section, to illustrate the operation thereof.

Figure 3 is a sectional view taken 33 of Figure 2.

Figure 4 is a fragmentary diagrammatic plan view of a portion of the apparatus.

Referring to the drawings in detail, wherein like characters of reference denote corresponding parts, the reference characters 10 and 11 indicate companion plunger housings carried upon the under side of the locomotive 12 by strap irons 13, substantially as illustrated in Figure 1 of the drawings. Oppositely disposed pistons 14: and

on line 15 are carried within the housings 10 and 11 respectively. Connecting rods 16 carried by each of the pistons are projected centrally of the ends of the housings and within packing glands 17 therefor to preserve compression within the housings. Links 18 depend from the outer ends of the plunger or connecting rods 16 and adapted for oscillatory and reciprocatory movement thereon. A connecting bar 19 is pivotally associated at appropriate points in the lengths of the links 18.

Bars 20 have the curved ends thereof correspondingly associated to the outer ends of :the connecting rods 16 and intersecting upon the opposed sides of the connecting bar 19'.

A pivot bolt '21 having spacingthimbles 22 carried thereby space the respective bars 20upon the connecting bar 19, substantially as illustrated in Figure 3 of the drawings,

to permit unrestricted operation'ofthelink's 18 and bars 20. Enlarged portions -23'are carried upon the free ends of the links 18 and bars 20 and including elongated and longitudinally disposed raceways 24 the purpose of which will be presently apparent.

Brake shoes 25 forming reduced upper end portions 26 are adapted for reception within the raceways 24 of the enlarged portionsj23 and disposed upon the opposite sidesof and A in juxtaposition tothe ball portions" of rails.

A valve member 27 mounted within convenient reach of-the locomotiveengineer is adapted to selectively introduce steam to either end of the respective housings '10 and ll to operate'said pistons in opposite directions.

In so doing'the connect-ingrods 16 will be drawn lnwardly with the pistons and the links 18 carriedthereby will swing upon the opposite ends of the connecting bar 19 to frictionally engage the shoes" carried thereby with the inner sides of the aforementioned 'portion of the rails the bars 20 will swing movement is permitted whereby the device when called into use will grab the rails and subsequently swing in order that the jerkas experienced in rigidly mounted braking apparatus is overcome. The brake shoes as carried upon the enlarged end portions of the bars 20 are of a dilferent configuration from that of the shoes as carried upon the lower extremities of the links 18 and which are adapted to engage the outer and upper sides of rail balls in contra-distinction to changes in its form, proportions and minor details of construction, and the right is herein reserved to make such changes as properly fall within the scope of the appended claims.

Having thus described my invention, what is claimed is: p

1. A braking apparatus comprising multiple housings having oppositely disposed pistons therein, links depending from the piston connecting rods, brake shoes carried upon the opposed ends thereof, a bar con necting said links to equalize the draft thereof, and additional bars carried by said piston connecting rods intersecting across the first mentioned bar and terminating in uXtaposition to that of the shoes carriedby the links.

2. A braking apparatus comprising multiple housings having double acting pistons therein, links depending from the outer ends of the connectingro'ds for the pistons, brake shoes carried upon the remaining ends of the links,a connecting rod cooperatively associating the links, bar members intersecting upon the opposed sides of the connecting bar and providing curved end portions correspondingly associated with the respective ends of said connecting rods, and a pivot pin carried by the connecting rod and swingingly mounting the last mentioned bars thereon.

3. A braking apparatus comprising multiple housings having double acting pistons therein, links depending from the outer ends of the connecting rods for the pistons, brake shoes carried upon the remaining ends of the links, a connecting rod cooperatively associating the links, bar members intersecting upon the opposed sides of the connecting bar and providing curved end portions correspondingly associated with the respective ends of said connecting rods, a pivot pin carried by the connecting rod and swingingly mounting the last mentioned bars thereon, and brake shoes carried upon the opposed ends of the bars.

i. A braking apparatus for use upon railway vehicles comprising multiple housings having double acting pistons therein, links depending from the outer ends of piston connectin rods, a connecting rod cooperatively associating said links, bar members inter secting across the opposed faces of the connecting rod and terminating in curved end portions correspondingly associated with the adjacent ends with the piston connecting rods, a pivot pin carried by the connecting rod mounting said bars for swinging movement thereon, and brake shoes carried upon the remaining extremities of the links and bars for active engagement with rail balls when said pistons are called into active use.

5. A braking apparatus comprising multiple housings having pistons therein, links connected with the istons, brake shoes carried by the. links, a ar connecting the links to equalize the draft upon the shoes, additional bars pivotally connected at their intersections with the bar and similarly connected with the piston connected ends of the links, and brake shoes carried upon the opposed ends of the additional bars being disposed in opposed relation to the first mentioned shoes.

In testimony whereof he affixes signature.

JOSEPH LORENZE. 

